YNAO OpenIR  > 抚仙湖太阳观测和研究基地
A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments
Li, Yun-Li1; Zheng, Sheng1; Deng LH(邓林华)2; Zeng, Shu-Guang1; Lin, Gang-Hua3
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2021-11
Volume21Issue:9
DOI10.1088/1674-4527/21/9/238
Contribution Rank第2完成单位
Indexed BySCI
KeywordSun filaments prominences Sun evolution Sun activity
Abstract

Solar filaments, hypothermia and dense structures suspended in the solar corona are formed above the magnetic polarity inversion line. Polar crown filaments (PCFs) at high-latitude regions of the Sun are of profound significance to the periodic variation of solar activities. In this paper, we statistically analyze PCFs by using full disk H alpha data from 1912 to 2018, which were obtained by Kodaikanal Solar Observatory (KODA, India), National Solar Observatory (NSO, USA), Kanzelhohe Solar Observatory (KSO, Austria), Big Bear Solar Observatory (BBSO, USA), and Huairou Solar Observing Station (HSOS, China). We first manually identify PCFs from every solar image based on the centennial data, and record the latitude and other features corresponding to the PCFs. Then we plot the PCF latitude distribution as a function of time, which clearly shows that PCFs rush to the poles at the ascending phase of each solar cycle. Our results show that the filaments drift toward mid-latitude covering solar cycle 15 to 24 after the PCFs reach the highest latitudes. The poleward migration rates of PCFs are calculated in ten solar cycles, and the range is about 0.12 degree to 0.50 degree per Carrington Rotation (CR). We also investigate the north-south (N-S) asymmetry of migration rates and the normalized N-S asymmetry index.

Funding ProjectNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U2031202] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1531247] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1731124] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13505-04] ; special foundation work of the Ministry of Science and Technology of China[2014FY120300]
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U2031202, U1531247, U1731124] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13505-04] ; special foundation work of the Ministry of Science and Technology of China[2014FY120300]
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
WOS IDWOS:000714219500001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMAGNETIC-FIELD ; LATITUDE MIGRATION ; CYCLE ; PROMINENCES ; REVERSAL ; SUNSPOTS ; SUN
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ynao.ac.cn/handle/114a53/24653
Collection抚仙湖太阳观测和研究基地
Corresponding AuthorZheng, Sheng
Affiliation1.Center of Astronomy and Space Science, China Three Gorges University, Yichang 443002, China;
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China;
3.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
Recommended Citation
GB/T 7714
Li, Yun-Li,Zheng, Sheng,Deng LH,et al. A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(9).
APA Li, Yun-Li,Zheng, Sheng,Deng LH,Zeng, Shu-Guang,&Lin, Gang-Hua.(2021).A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(9).
MLA Li, Yun-Li,et al."A new comprehensive dataset of solar filaments of one-hundred-year interval (II) the poleward migration of polar crown filaments".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.9(2021).
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